<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <h3>小黑的书架</h3>
    <ul>
      <li v-for="(item,index) in bookList" :key="item.id">
        {{item.name}}  {{item.author}}
        <button @click="del(item.id)">删除</button>
      </li>
    </ul>

  </div>

<script src="../js/vue.js"></script>
<script>
 var app = new Vue({
        el: "#app",
        data: {
          bookList: [
          { id:1, name: '<<红楼梦>>',author:'曹雪芹'},
          { id:2, name: '<<西游记>>',author:'吴承恩'},
          { id:3, name: '<<水浒传>>',author:'施耐庵'},
          { id:4, name: '<<三国演义>>',author:'罗贯中'},
          ],
        },
        methods:{
          del(id){
            //  this.bookList = this.bookList.filter(item => item.id !== id)
            this.bookList =this.bookList.filter(item =>item.id !== id)
          }
        }
      });

</script>

</body>
</html>